ObjectiveC migrator. Introduce a new objcmt-atomic-property option
and use it to infer all properties as 'atomic'.
// rdar://14988132


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@192317 91177308-0d34-0410-b5e6-96231b3b80d8
Debug Info: update testing cases when the context and type fields of
template_type and template_value are updated to use DIRef.

Paired commit with r192320.


git-svn-id: http://llvm.org/svn/llvm-project/cfe/trunk@192321 91177308-0d34-0410-b5e6-96231b3b80d8